摘要:
A semiconductor package and a method for constructing the package are disclosed. The package includes a substrate and a die attached thereto. A first contact region is disposed on the substrate and a second contact region is disposed on the die. The first contact region, for example, comprises copper coated with an OSP material. A copper wire bond electrically couples the first and second contact regions. Wire bonding includes forming a ball bump on the first contact region having a flat top surface. Providing the flat top surface is achieved with a smoothing process. A ball bond is formed on the second contact region, followed by stitching the wire onto the flat top surface of the ball bump on the first contact region.
摘要:
A method of mounting a semiconductor die on a substrate with a solder mask on a first surface includes placing a die on the solder mask, and mounting the die to the substrate by applying pressure and heat. The applied pressure ranges from a bond force of approximately 5 to 10 Kg, the heat has a temperature range from approximately 150 to 200° C. and the pressure is applied for a range of approximately 1 to 10 seconds.